class_docstr: Author: {Xiang An, Yang Xiao, XuHan Zhu} in DeepGlint,
  Partial FC: Training 10 Million Identities on a Single Machine
  See the original paper:
  https://arxiv.org/abs/2010.05222
code: def clear_grad(self):
      self._parameter_list = []
  
file_path: insightface/recognition/arcface_paddle/dynamic/classifiers/lsc.py
imports: import warnings
  import math
  import os
  import paddle
  import paddle.nn
label_desc: Use image node_id 3 for calling the LargeScaleClassifier obj's underlying member method code with example usage: obj.clear_grad() without return types